D27
GC Cryo-Trap
TM
Scientific Instrument Services, Inc.
TM
FAX: 908-806-6631
www.sisweb.com/catalog/08/D27
Applications
-
Thermal Desorption Sample Trapping
-
Purge and Trap Systems
-
GC Headspace Sample Analysis
-
Multi-dimensional GC applications
-
Improve Chromatographic
resolution of early eluting peaks
Features
-
Cooling Chamber is 4" long
-
For Use in high flow applications
(10-50 ml/min)
-
2 models available
Model 951 for Liquid CO
2
cooling to -70°C
Model 961 for Liquid N
2
cooling to -180°C.
-
Reduction of CO
2
or LN
2
use by 90%
as compared to cooling the entire oven.
-
Dual programmable cryo-cooling and
heating cycles
-
Trap compounds in the GC oven at the head
of the GC column.
-
Remote input connector for cryo-cooling to
heating cycle switching via GC, Desorption
system or manually.
-
Rapid heating up to 400°C at > 400°C per
minute.
-
Remote start output signal for starting GC,
MS or recorder.
-
Custom I.D. sizes available
T
he Cryo-Trap consists of a small heating/cooling cham-
ber which is 3/4" in diameter and 4" long. In the center of
the chamber is a small stainless steel capillary through
which the capillary column freely passes. Capillary columns up to
megabore (0.53mm I.D.) diameters can be used (other I.D.'s are
also available). Around the stainless steel capillary tube a heating
coil is wound to provide for the rapid heating of the capillary tube.
A thermocouple provides accurate measurement of both the cool-
ing and heating temperatures. Either Liquid CO
2
(Model 951) or
Liquid Nitrogen (Model 961) for cooling is introduced into the Cryo-
Trap, and is exhausted through the outlet which can either be vent-
ed into the GC or a tube can be attached to vent external to the
GC oven.
The control of the Cryo-Trap is provided via an independent
Cryo-Trap Controller provided with the System. Both the Cryo-
Cooling and heating temperatures are set via this digital tempera-
ture controller. The system can be used either manually to swit
between cooling and heating or can be operated automatically via
an input signal from a controlling device.
For additional applications request the FREE Application Notes available from S.I.S. (908) 788 - 5550
New Programmable Cryo-cooling and Heating Trap for the Cryo-Focusing of
Volatiles and Semi-Volatiles at the Head of GC Capillary Columns.
GC Septa
GC Injection Port
GC Injection
Port Liner
Vespel Insulator
Injection Port Clamp
Injection Port Nut
Heater Coil
Thermocouple
Cooling Gas IN
Cooling Chamber
Capillary Column
Cryo-Trap Heating and Cooling Controller
tip...
